(1) If the authorised officer in a medical institution is a pharmaceutical chemist, he or she must not supply a narcotic substance otherwise than for its administration (a) on a prescription written in accordance with the provisions of regulation 15 or the written request of (i) the registered nurse in charge of the ward in which the narcotic substance is to be used or stored; or(ii) an authorised nurse practitioner; or(iii) a medical practitioner; and(b) to a patient in that ward.Penalty: Fine not exceeding 10 penalty units.(2) If the authorised officer in a medical institution is the medical officer in charge or registered nurse in charge of that institution, he or she must not supply a narcotic substance otherwise than for its administration (a) on the written request of (i) the registered nurse in charge of the ward in which the narcotic substance is to be used or stored; or(ii) a dentist; or(iii) an authorised nurse practitioner; or(iv) a medical practitioner; and(b) to a patient in that ward.Penalty: Fine not exceeding 10 penalty units.